Pulverizing attachment for plowshares.



D. S. CARTER.

PULVERIZING ATTACHMENT FOR PLOWSHARES. APPLICATION FILED JAN.26, 1914- Patented May 4, 1915.

vmmmtoz Dim?? ,5. Carmen THE NORRIS PETERS 60., PHOTIHJTHQ. WASHINGmN, D. c

DIXON S. CAB-TERI, OF DAVENPORT, IOVIA.

PULVERIZING ATTACHMENT FOR PLO'W SHARES.

enace.

To all whom it may concern Be it known that I, DIXON S. CARTER, a

citizen of the United States, residing at ments for Plowshares, of which the following is a specification.

My invention relates to improvements in attachments for plows, such as turning plows, to be preferably connected with the mold-board, for pulverizing or finely dividing the soil or furrow-slicesas the same are turned up by the plow.

An important object of the invention is to provide means of the above mentioned character, which is convenient and highly economical in use, saving both time and labor.

A further object of the invention is to provide means of the above mentioned character, which will have a high pulverizing or dividing action. i

A further object of the invention is to provide novel means to detachably connect the attachment or attachments with the mold-board to securely hold the same against accidental displacement thereon and at the same time being easy to manipulate.

A further object of the invention is to provide connecting means of the above mentioned character, which may be readily adjusted without necessitating the removal of the attachment or attachments from the mold-board, to move the attachment or attachments to desired angular positions.

Other objects and advantages of this invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure l is a perspective view of a mold board equipped with attachments embodying my invention, Fig. 2 is an end view of the intermediate blade or cutter, Fig. 3 is a plan view of the same, Fig. 1 is a similar view of the inner,

blade or cutter, Fig. 5 is a similar view of the outer blade or cutter, and Fig. 6 is a transverse section through the mold board showing one of the blades or cutters in side elevation.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 desig- Specification of Letters Patent.

. suffice for all.

Fatented May a, 1915.

Application filed January 26, 1914. Serial No. 814,369.

nates a, mold board to be connected with a turning plow share (not shown).

The numerals 14, 14, 15 and 16 designate blades or cutters, as a whole, which are detachable and adjustably connected with the upper end of the "mold-board 10. The connecting means for these blades or cutters is identical, whereby a description of one will Each blade or cutter, as more clearly shown in Figs. 2, 4:, and 6, has its inner or lower end provided with a vertically inclined transverse slot 17, for receiving the upper end of the mold-board. Attention is called to the fact that the lower portion 18 of the forward cutting edge of the cutter or blade overlaps the upper end of the mold-board for a short distance, whereby the pulverizing or cutting action commences a little before or just as the soil or furrow-slices are being discharged from the upper end of the mold-board. This is considered an important feature of the invention. When in use, such blade is preferably 45 from the perpendicular, more or less, as shown, the same extending forwardly to overlap the plow share.

The numeral 19 designates a head preferably separate from the blade, which is preferably provided with a slot 20, as clearly shown in Fig. 2, for receiving the lower or inner end of the blade or cutter, such end being retained therein by transverse pins or rivets 21. \Vhile I prefer to construct the head 19 separate from the blade, and connect it thereto as above explained, yet I may forge the head integral with the blade. The head 19 is arranged to one side of and adj acent the slot 17, preferably below the same. Each head 20 is provided upon opposite sides of the slot 17 with screw-threaded openings 21, receiving clamping bolts 22. The slot 17 is sufficiently wide whereby when the blade or cutter is applied to the upper end of the mold-board the same may be laterally angularly adjusted by proper manipulation of the clamping bolts 22, as indicated by the dotted lines in Fig. 1, the blade or cutter turning upon the upper wall of the slot 17 as a pivot to be moved to the desired angular position. In use, the blade is preferably turned upon its longitudinal axis, to occupy a lateral position of 15" from the perpendicular, more or less, whereby the blade will be directly in al'mement with the upwardly. moving furrow-slice. Each of the blades or cutters 14:, and 14' are'arranged at a slight angle to the head 19 and is laterally inclined with relation thereto. The upper end portion of each blade or cutter '14 or 14 is twisted or spirally bent, provid ing an outwardly extending curved or spiral end portion. The function of this inneror outer blade is to first vertically cut or slice the soil or furrow-slices, and as the same pass upwardly to again approximately horizontallyccut and pulverize the same, throwing itlaterally and downwardly to cover the crevices where grass or weeds are usually left exposed, thus smothering the grass or weeds and preventing their growth.

The intermediate blade or cutter 15 is arranged at a slight angle to the head 19 and .is laterally inclined with relation thereto. This blade or cutter has its upper end forked, providing oppositely and upwardly extending curved or spiral extensions or blades 23. The function of this blade or cutter is to first cut .or slice thesoil orfurrow-slices vertically, and as the same passes upwardly in contact with the extensions 23, to out the same approximately horizontally, pulverizing it and distributing the same upon opposite sides of the blade or cutter. Itis thus seen that the blade has a powerful cutting or pulverizing action. 7

The blade or cutter 16 is preferably substantially straight although the same may be slightly twisted, this blade being also arranged at a slight angle to the head 19 and laterally inclined with relation thereto. The function of this blade or cutter is to vertically out or slice the lower or outer side of the soil or furrow-slices and to also pulverize the same to a certain extent. I

In use, the cutters or blades are mounted upon the mold-board 10, in spaced relation, as clearly shown in Fig. 1. It is preferred to use the difierent blades or cutters 14:, 1 1,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

15 and 16 together, as I have found by experience that the best results are thereby obtainable. However satisfactory results are obtainable by using blades or cutters of the same kind. The number of blades or cutters may be varied, as will be found best under the particular conditions. v

No attempt has been made to show the blades or cutters in all of the difl erent shapes in which they may be used, with some degree of success, itv beingunderstood that certain changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention, as 'defined inthe appended claims.

Having described my invention, Iclaim 1. A blade adapted to be connected with a mold board and having lateral extensions projecting in opposite directions.

2. A blade adapted to be mounted upon a mold board and having a longitudinally extending forward cutting edge and a slot extending transversely of the attaching end of the blade and passing through the cutting edge thereof and spaced a substantial dis- DIXON S. CARTER.

Witnesses:

GLENN D. KELLY, E. J. FOSTER.

Washington; I). G. 

